<html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Dear All, What exactly is the difference between jack_midi_event_reserve and jack_midi_event_write ? In particular, if I call jack_midi_event_write, does it actually copy the data from the buffer, which I provide? Or does it use that same buffer. Another question is how can I send midi events generated from GUI, (which does not run in the audio callback)? My guess is to cache them somewhere and transmit them inside the callback? Am I guessing correctly? Cheers, Robert </body> </html>